Voltage and Polarity Unknown on 1948 Dodge

Tiny
850HP73MACH1
  • MEMBER
  • 1980 JEEP CJ5
  • 4.6L
  • 6 CYL
  • 4WD
  • MANUAL
  • 43,000 MILES
At this point my problem is unknown. I was reading a thread between a fellow named CJ MEDEVAC and another fellow and was completely mesmerized. I purchased a 1948 Dodge Sedan three years ago. I tried starting it, but with dismal results so I gave up on it since I have eleven other automobiles five of which are classics and they take up most of my time. That said, I really would like to get the old 48 running. First problem is: How do I know if it is 12 or 6 volt and is it positive or negative ground? The car is completely original. I really want to talk to CJ MEDEVAC on this as he seems extremely wise. I am a mechanic of forty plus years but admit I learn something new every day thus am not to proud to be taught.
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Thursday, January 7th, 2016 AT 8:14 AM

18 Replies

Tiny
HMAC300
  • EXPERT
It's 6 volt and positive ground. I checked in my old motors manual
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Thursday, January 7th, 2016 AT 9:34 AM
Tiny
850HP73MACH1
  • MEMBER
Thank you so very kindly HMAC300, I have to admit I feel really stupid! I have been working on old cars since I was around fifteen and I am fifty six now, how could I not have heard about positive ground? The past three years I have had two back surgeries, both of which have left me a hundred times worse off than I was originally. I can no longer work a job, I need a cane to walk with, and the doctor says a wheelchair is in my immediate future. I tell you this so you and all others understand why it will take weeks to months before I can test any information given to me by wise folks like you. I will find the strength to test this Positive ground within the next week. The last time I tinkered with the old girl was over two years ago and at that time I began preparations to pull the engine. Thus I have a lot of parts to reinstall before she is going to run again. But I have a new found purpose to resurrect her because of you. I will be in touch again to let you know what happened. Again I thank you so very kindly. Warmest regards, Jeff PS: Is it against the rules on this forum to post my telephone number?
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Friday, January 8th, 2016 AT 11:02 AM
Tiny
HMAC300
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Because of scammers it is not wise to post your phone number. Never do that on any site.
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Friday, January 8th, 2016 AT 12:04 PM
Tiny
850HP73MACH1
  • MEMBER
Ok, Thanks
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Saturday, January 9th, 2016 AT 10:09 AM
Tiny
CJ MEDEVAC
  • EXPERT
I JUST GOT TO LOG ON, WIFEY HAD ME DOING A WHOLE BUNCH OF CRAP OVER THE LAST FEW DAYS.

I APPRECIATE ALL OF THE COMPLIMENTS

I GOT THE "BIG HEAD" NOW! LOL!

ARE YOU MAKING THIS IS INTO A "PERFECTION CAR SHOWMOBILE" OR AN ENJOYED "SUNDAY DRIVER SHOWMOBILE", TURNING HEADS ON THE ROAD (LIKE MY '46 WILLYS, WHEREAS MAYBE MODERN "USER FRIENDLIER PARTS" OVERRIDES "IT MUST BE PERFECT ORIGINAL")?

WE REALLY LIKE PICS! SO SEND US A FEW!

THE MEDIC
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Saturday, January 9th, 2016 AT 11:42 AM
Tiny
850HP73MACH1
  • MEMBER
Hello CJ MEDEVAC. The 1948 Dodge Sedan four door I have is all original. EXCEPT! When I purchased the car I got it from a young kid that was going to chop it by eighteen inches with twenty two inch wheels on it. He got the wheels on it by kinking one of the rear fenders (Dumbazz) but it was when he tried to install his big bang boom box crap or whatever is it called whereas he lost interest. He installed a twelve volt battery as well as destroyed the ignition switch trying to get the stereo working, also lost the key. Anyhow that is when I came along and purchased the car. I gave him his wheels back and put the original wheels and tires back on it. I cannot say the kid was all stupid as I followed right behind him assuming it was twelve volt and negative ground. Long story short I gave up on it for now as my 59 Cadillac was calling for me. The Dodge has be sitting covered inside my shop since with no new headway. The car will be a Sunday driving beauty when I get her going. I have purchased a six volt battery but the cold weather and my back says I will have to wait to play with it. I will post photographs of it soon. Do not know what else to tell you at this time so. Take care and God bless. Please stay in touch as I will need help on the ignition switch. Warmest regards, Jeff
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Wednesday, January 20th, 2016 AT 1:07 PM
Tiny
CJ MEDEVAC
  • EXPERT
I'LL BE A WAITIN' FOR AN EMAIL NOTIFICATION THAT YOU ARE BACK ON THIS THREAD!

THE MEDIC
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Wednesday, January 20th, 2016 AT 3:06 PM
Tiny
850HP73MACH1
  • MEMBER
I am back on but only for a short time. I have a pending deal on Craigslist to trade my 1980 CJ5 for a 1926 Ford two door, however I am confident the deal will fall through. That is the only reason I forced myself to sit in front of the computer. Since I am here I will post the few photographs I have of the 48 Dodge at this time. Warmest regards, Jeff
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Thursday, January 21st, 2016 AT 1:22 PM
Tiny
CJ MEDEVAC
  • EXPERT
AND I WAS JUST STARTING TO LIKE YOU! LOL!

THE JEEP IS THE BEST VEHICLE YOU HAVE!

LOOKS LIKE YOU HAVE OTHER INFERIOR CARS YOU COULD TRADE.

THE MEDIC
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Thursday, January 21st, 2016 AT 7:52 PM
Tiny
850HP73MACH1
  • MEMBER
Good Afternoon CJ MEDEVAC Come on now cut me a little slack. The Jeep was my number one toy when I was a younger lad. Age and two back surgeries gone bad I have little choice but to get rid of it. Many of my toys now are far to painful to ride/drive. Sold my Yamaha 250, the sand rail and my Honda Recon four wheeler. I need to sell the Jeep, the Suzuki DR350 and the Polaris Magnum 500 4X4 four wheeler, and I want to sell the 73 Mach1 but the wife wants me to keep it. We dated in it and 39 years this July I still have it. With a few modification I added over the years. I would be glad to sell you any of them you want. My 59 Belair, 59 Edsel, 59 Biscayne, 60 Pontiac, 59 Cadillac and 57 Chevy "Inferior" automobiles as you call them, give me my greatest pleasure and joy next to our eight grandchildren. Number 8 being born any minute now. Well I guess I had better end this as I have noticed that folks on this forum frown on long winded replies. I leave you now with good wishes and blessings as well as a few photos of the Mustang. Take care, regards, Jeff
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Friday, January 22nd, 2016 AT 9:59 AM
Tiny
CJ MEDEVAC
  • EXPERT
NUTHIN' WRONG WITH LONG POSTS, IN FACT, I WAS TOLD THAT THE BIG GUYS LIKE TO SEE 'EM WITH LOTS OF REPLIES. I'M ON SEVERAL WITH OVER 120 COMEBACKS (OF COURSE- JEEPS!)

I'M IN THE LOWER 50s, I'VE BEEN PONDERING WHAT SORTA MODS I MIGHT HAVE TO DO IF I HAPPEN TO BECOME QUADRIPLEGIC OR WORSE! I'VE NEVER HAD ANYTHING ELSE BUT A CJ, EVER SINCE THEY ALLOWED ME OUT ON THE ASPHALT IN 1981.

I RECKON I'LL JUST HAVE TO ENDURE ANY PAIN TO HANG WITH MY BABIES! (CARS ARE WORSE ON YOU, THEY ARE LIKE CRAWLING IN AND OUT OF A BATHTUB)

KEEP US POSTED ON THE '48 (OR ANYTHING ELSE!)

YOU DO HAVE SOME REALLY NICE LOOKING CARS.

I RECKON YOU ARE HOLDING OUT ON THE JEEP PIC, JUST TO BE MEAN I GUESS!

YOUR TURN

THE MEDIC

(UNABLE TO SEND ANY IMAGE, THEY MUST STILL BE REMODELING THE SITE)
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Friday, January 22nd, 2016 AT 5:06 PM
Tiny
CJ MEDEVAC
  • EXPERT
HERE YA GO!

THE 1st VIDEO

MY PAL JUST LINKED IT TO ME IN AN EMAIL

http://biggeekdad.com/2013/01/the-best-of-times/

THE MEDIC
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Friday, January 22nd, 2016 AT 6:40 PM
Tiny
850HP73MACH1
  • MEMBER
Good Afternoon CJ MEDEVAC As bad as my back pain is I do not complain about it. A person cannot complain their shoes are to tight when there are people that have no legs. Quote "I RECKON I' LL JUST HAVE TO ENDURE ANY PAIN TO HANG WITH MY BABIES!" End quote. I pray you never find out what sort of pain will force you to give up your babies. Now moving on, It is still to cold to work on the 48, but since you seem to be replying to my every post, I guess it is time to cover another nagging Dodge question. When I thought it was 12 volt I had a brand new 12 volt battery in the Dodge, It turned over as if the battery was nearly stoned cold dead. I then hooked up the jumper cables from the new battery in the Bronco to the new battery in the Dodge. I would attach the cable just as I hit the starter thus throwing 1700 cranking amps to the Dodge. Results were the engine turned over just as sluggish and dead as it did before. Now in light of this forums new information in that the Dodge is 6 volt and positive ground, my question is: Are the experts on this forum telling me that the new 6 volt battery when hooked up correctly positive to ground is going to turn that engine over like it should? Or should I be removing the starter and having it rebuilt? Lastly I thought I did post photos of the Jeep, anyhow I will attach the only ones I have right now. Take care all. Regards, Jeff
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Saturday, January 23rd, 2016 AT 11:22 AM
Tiny
CJ MEDEVAC
  • EXPERT
HERE'S SOMETHING TO PONDER

I HAVE BEEN LOOKING FOR YOUR STARTER EBAY/ ONLINE/ ONLINE PARTS STORES

I WANTED TO SEE IF IT LOOKED AND WORKED SIMILAR TO "WILLY'S" STARTER (MY '46 WILLYS JEEP)

HERE'S THE CATCH, HAS SOMEONE MODIFIED IT FROM 6 TO 12 AND IS IT STILL POS GROUND (IF IT EVER REALLY WAS)?

MY JEEP 6 VOLT STARTER SPUN MEGA FAST WHEN A 12 VOLT BATTERY WAS HOOKED TO IT. ("THEY" SAID IT WOULD BE OKAY!) WELL IT WUDDN'T, IT SPUN FAST AND THE STARTER DRIVE SLUNG OUT SO HARD THAT FORCE WOULD BUST THE END OFF OF THE STARTER DRIVE AFTER MAYBE EVERY 100 CRANKINGS. AFTER TALKING TO A "STARTER GUY", HE SAID I COULD CHANGE THE FIELDS TO 12 VOLT FIELDS AND THE STARTER WOULD SLOW BACK DOWN (ON 12 VOLTS) TO ABOUT THE SAME RPMs AS IT WAS ORIGINALLY ON 6 VOLTS.

THE FOLLOWING IS PASTED FROM A 2011 POST I ANSWERED

MY STARTER (SHAFT) WILL TURN BACKWARDS--HOWEVER THE STARTER DRIVE WILL NOT KICK FORWARD. IT WORKS WITH AN ECCENTRIC WEIGHT, AND A ACME SCREW, AND TURNING BACKWARDS ACTUALLY SCREWS IT "INWARD" AWAY FROM THE FLYWHEEL!

IT GOES ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ! (WHEN IT SPINS BACKWARDS)

NOT A RUMP A RUMP A RUMP A RUMP!

I FOUND THIS OUT WHEN I INSTALLED MY NEW 12 VOLT FIELDS INTO THE OLD 6 VOLT STARTER HOUSING. HERE'S THE CATCH. INSTALLED MY BRUSHES PLATE A 1/4 TURN, FROM THE CORRECT POSITION (CAUSE I FAILED TO MARK THE HOUSING WHEN I TOOK IT APART)

I TOOK IT ALL BACK APART AND TOOK THE FIELDS BACK TO THE ALTERNATOR SHOP AND PROCLAIMED "I HAVE THE WRONG FIELDS, THEY TURN BACKWARDS",

THEN THEY SORTA GOT ME ON TRACK, AND I HAD TO INSTALL THEM AGAIN, THIS TIME ROTATE MY BRUSHES A 1/4 TURNBACK INTO PLACE

LESSON WELL LEARNED---MARK POSITIONS OF ANY DEVICE WITH A MARKER, CHISEL, ETC. SO THINGS LINE BACK UP LATER!

THE FIELDS WERE ABOUT $12, $60 FOR THEM TO INSTALL 'EM. I CHEAPED OUT AND HAD TO DO IT TWICE AND ENDURE THE EMBARRASSMENT OF DOING IT WRONG AFTER ANNOUNCING MY IGNORANCE!

SO I'M LEADING INTO THIS

WILL YOUR STARTER TURN BACKWARDS, IF THE POLARITY WRONG AT THE BATTERY? WHICH MAY SET YOU ON THE TRACK OF CORRECT POLARITY.

THE MEDIC
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Saturday, January 23rd, 2016 AT 1:52 PM
Tiny
CJ MEDEVAC
  • EXPERT
. YOU MUST KEEP THE JEEP!

I LIKE THE HARDTOP, I BELIEVE THAT IS A "TANK TOP"?

I USED TO SEE 'EM IN THE BACK OF MAGAZINES WHEN I WAS KNEE HIGH TO A GRASS HOPPER, I LIKED THE BIG WINDOWS, IF I REMEMBER RIGHT, YOU COULD GET 'EM WITH COMPARTMENTS MOLDED ON THE INSIDE. SEEMS THEY GOT OBSOLETE BY THE TIME I REALLY STARTED THINKING ABOUT A HARD TOP FOR MY "5".

THE MEDIC

(MY DAUGHTER BACK IN 1997, PROFICIENT IN DRIVING "WILLY" AT AGE 10, SHE LAYS CLAIM TO HIM SINCE I USED HER BIRTH DATE FOR THE NUMBERS ON THE HOOD)
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Saturday, January 23rd, 2016 AT 7:47 PM
Tiny
850HP73MACH1
  • MEMBER
Good Afternoon CJ MEDEVAC I cannot believe how often I log on to this site, I find myself daily wondering if you replied and just cannot seem to stay away. To address the CJ first, I have the soft top and bikini tops to it as well. The hard top on my jeep is rare indeed. I have been looking for a top for nearly twenty years before I stumbled onto this one. And yes it has molded pockets on the doors, I cannot say if they are on the cab as I never sit back there, I would have to look see. The only small problem with this top was the previous owner cut a sun roof in it but never installed a sun roof. When I got I it I had to install one, I should have taken it to a body shop and had them fiberglass the hole closed as It leaks. Not if your driving in the rain but if it sets and rain water pools on it.

The 48 Dodge to my knowledge is 100% original. The kid that had it before me bought it from the original owner in Texas and when he purchased it he drove it on the trailer to bring it back home. Then he tried to install a huge stereo in the car. Now here is where I assume what happened. The stereo would not play with a 6 volt battery so he installed a 12 volt, he tore out the ignition switch assuming it had to be switched from a 6 volt to a 12 volt switch. This is when I found the car as he lost all interest. I can tell he did not change anything else as what ever he touched turned to crap! So I have no doubt the car is all original. Now moving onto the starter. When I turned it over with the 12 volt battery and even with the jumper cables from another new 12 volt battery, the car turn over (IE the fan was turning in the proper direction) but the car turned over like raow. R. R. Raow. R. Raow. R. R. Raow. And this is why I suspect the starter to be bad. I think a 6 volt or a 12 volt battery should have turned it over like one would expect. Its turning over so slow that it is obviously she is not going to pop off and run. I have brand new points, condenser, plugs, wires, coil and battery for 6 volt as well as I have had the carburetor rebuilt. If I can just get the old girl to turn over, I guarantee I will get her started.

Lastly, is it positive ground? Is it negative ground? I do not know! I asked the question on this forum about a month ago a someone said it was 6 volt positive ground. That is why I asked the question as to: do well really think by me changing the ground from negative to positive that she is going to whip over like it should. Oh and how do I know the starter is original with no changes made? Because there is 68 years of oil and Texas dust and dirt on the bolts. And the dirt is still there. Ok man. The ball is in your court! Take care, regards, Jeff
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Sunday, January 24th, 2016 AT 1:32 PM
Tiny
2CARPROS MIKE
  • ADMIN
Hi Jeff,
You are welcome to post as often as you like just as you are. Those pictures of your Mustang look awesome, you did a fantastic job.
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Wednesday, January 27th, 2016 AT 9:22 AM
Tiny
CJ MEDEVAC
  • EXPERT
WELL SIR

LIKE I SAID IN ONE OF MY PREVIOUS NOVELS

LOOKS LIKE IF YOU HAD IT BACKWARDS, MR. STARTER WOULD PROBABLY TURN BACKWARDS.

I DID DO A LITTLE LOOKING AT STARTERS (WHICH I THINK IS YOURS)

FROM WHAT I COULD TELL IN THOSE PICS WAS THERE IS AN ARM (SURELY FOOT ACTUATED) (BASICALLY THE POWER SWITCH) TO TURN THE STARTER "ON"

TELL ME IF I'M ON TRACK

THE SAME ARM SIMULTANEOUSLY "LEVERS" THE STARTER DRIVE INTO THE FLYWHEEL TEETH??? WHEN YOU LET UP WITH YOUR FOOT, POWER DIES AND THE STARTER DRIVE RETRACTS BACK INTO THE STARTER

DOES THE STARTER DRIVE HAVE A RATCHET ACTION ONCE THE CAR CRANKS AND YOU DIDN'T SNATCH YOUR FOOT UP FAST ENOUGH?

AGAIN I'M ASKING/ HYPOTHESIZING THIS THAT IF IT WERE HOOKED UP WRONG

A) A RATCHETING STARTER DRIVE MIGHT ZZZZZZZZZZ OR RATCHET IF THE POLARITY WERE WRONG (NO CRANKY THE ENGINE)

B) IF IT WERE A "DIRECT DRIVE" OR FIXED TO THE ARMATURE STARTER DRIVE/ GEAR IT WOULD TURN THE ENGINE FORWARD OR BACKWARDS AS LONG AS YOU HELD THAT ARM DOWN.

NEVER THE LESS, IF YOUR FAN IS TURNING THE RIGHT WAY WHILE IT'S A CRANKIN', HOWEVER YOU'VE GOT IT HOOKED UP, THAT'S THE WAY YOU NEED TO KEEP IT!!!

GOT ANOTHER EMAIL FROM MY BUDDY, YOU WILL LIKE THIS! MAYBE # 13 ON THE LIST WILL MOTIVATE YOU A LITTLE BIT!

http://www.tvraaca.org/oldmovies.htm#movie

INSURE YOUR CLOSED POINT'S POP POP POP, WHEN YOU CRACK 'EM OPEN 'EM WITH A POPSICLE STICK

JUST GET THE STARTER REBUILT, LET'S HEAR SOME NEWS ABOUT IT BUSTING OFF

OR

KEEP ON WITH US AND WE'LL VERIFY TDC / DISTRIBUTOR ROTATION/ FIRING ORDER/ ETC

Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy, Must keep Jeep is my buddy,

THE MEDIC
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Wednesday, January 27th, 2016 AT 4:23 PM

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